Making and setting tubular well screens



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T. o. POE

` MAKING AND SETTING TUBULAR WELL SCREENS vF'iled Oct. l1, 1923 June 9, 'l931 Patented June `9, 1931 cire STATESv THOMAS 0. POE, F MASS'ILLON, OHIO MAKING AND sE'rfriNG TUBULAR WELL SCREENS Application filed October 11, 192. Serial No. 667,898.

The invention relates to the construction of wells by the use of tubular screens or pipes; and the objects of the improvement are to sink the pipe in a straight line into the ground, to

I make and maintain a well hole throughout its length, of a larger diameter than the tubular screen, to completely fill and maintain the annular space between the screen and well hole with a wall of gravel or other screening material, from the to-p to the bottom of the well, to prevent the gravel or other screening material from dropping below the lower end of the screen to utilize the weight of the gravel forsinking the screen into the well, and to hold the gravel in position and prevent it from traveling faster than the screen. The objects of the improvement are attained by securing a series of annular gravel supp-Orts or flanges around the pipe at spaced intervals from the lower` end towardthe top of the well; which flanges may be dished in shape and the series may extend entirely to the top of the well.

An embodiment of the invention is illus trated in the accompanying dra-wings forming part hereof, in whichy Figure 1 is anfaXial section of a well constructed in accordance with the present improvement Fig. 2, an enlarged section of the lower portion thereof;

Fig. 3, a detached perspective view of one of the collar flanges; and

Figs. 4, 5 and 6, perspective views of modii lied forms thereof.

Similar numerals refer to similar parts throughout the drawings.

The pipe may be made in sections l or l of sheet iron, steel or other suitable material and the sections intended to form a screen may be provided with perforations 2 in well known manner.

The collar flanges 3 may be made of sheet or cast metal, with a cylindric sleeve portion 3a which may be used as a coupling for securing adjacent pipe sections together, and a peripheral rim or flange porti-on 3b which may be dish shaped as shown in Fig. 3 or may be formed flat as shown at 3b in Fig. 4 or inverted to` provide a cutting edge, as shown at 8b, in Fig.y6. l 4 v The flange portions of the collar may be provided with perforations 4 tor permit a free passage of water along the sides of the pipe,'and they may also be provided with cylindric, peripheral rims 5, as shown in Figs. 4, 5` and 6, to give a broader bearing against the well hole for keeping the pipe in line and for more Veectively supporting and retaining the gravel or'other screening material. f'

In constructing a well, a holeis dug or otherwise sunk in the grounddown to the water level, into which hole the pipe or screen is placed and a wallv of gravel or othery screenu ing material throwniiiaround the 'pipe or screen. The natural material is then removed through the tube or screen from the bottom thereof by any well known mea-ns, whereupon the tube sinks or settles downwardv by its own weight, supplemented by the weight of the gravel held in position by the collar flanges, and supplemented also if neessary by additional weights on its Aupper en As the natural material is removed from the lower end of the pipe, the collar flange there located supports the gravel wall eX- tending upto the next collar flange and prevents the same from flowing downward into the cavity formed below the pipe; and in like manner each successive collar flange supports the gravel wall super-posed thereon; and the weight of the gravel thus supported at intervals by the successive flanges serves to carry the tube downward into the cavity made by the removalV of the natural material from below its lower end. Y

In this movement of the pipe the peripheral edges of the anges or the breadth of cylindric rims therein bear against vthe sides of the hole and center the pipe therein and prevent any bending or deflecting thereof from a true straight line.

I claim 1. A perforate, tubular well tube adapted to be inserted into an opening in the ground and provided with a series of perforate an-v nular screening material support flanges terminating in upwardly disposed peripheral rims arranged t0 bear against the Wall of said opening in the ground, for supporting screening material in a cylindrical column around the tube and in direct contact with the Wall of said o ening in the ground, and for preventing de ection of the tube throughout the length of the tube.

2. A well tube adapted to be inserted into an opening in the ground, including a series of tubular screen sections, each screen section having an annular screening material support terminating in an upwardly disposed peripheral rim arranged to engage the Wall of said opening in the ground, for supporting screening material in a cylindrical column around the tube and in contact With the wall of said opening in the ground.

3. A well tube to be inserted into an opening the ground, including a series of tubular screen sections, each screen section having an annular screening material support flange terminating in a cylindric upturned rim arranged to engage the Wall of said opening in the ground, for supporting screening material in a continuous cylindrical column from ange to flange around the tube andin direct contact with the Wall of said opening in the ground, and forpreventing bending in the tube from a true straight line.

In testimony that I claim the above, I have hereunto subscribed my name.

THOMAS O. POE. 

